md5() function in PHP

The md5() function in PHP is used to calculates the md5 hash of a string.

Syntax

md5(str, raw)

Parameters

• str  − The string to be calculated

• raw  − Specify Boolean values

  • TRUE  − Raw 16 character binary format

  • FALSE  − Default. 32 character hex number

Return

The md5() function returns the hash as a 32-character hexadecimal number.

Example

The following is an example −

 Live Demo

<?php
$s = "Welcome!";
echo md5($s);
?>

Output

9a843f20677a52ca79af903123147af0

Example

The following is an example −

 Live Demo

<?php
$s = "Welcome";
echo md5($s);
if (md5($s) == "83218ac34c1834c26781fe4bde918ee4") {
   echo "
Welcome";
   exit;
}
?>

Output

83218ac34c1834c26781fe4bde918ee4 Welcome